What is a magnetic field? A magnetic field is a picture that we use as a tool to describe how the magnetic force is distributed in the space around and within something magnetic.

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Let's explore what magnetic fields are and why do we like to talk about them? Created by Mahesh Shenoy.

Learn about magnetic field lines and their properties in this Khan Academy video.

Magnetic fields create force on moving charges. The force will accelerate the charge, changing its direction of velocity (ie. deflecting it).

Moving electric charges create magnetic fields in the space around them. These magnetic fields can be used to generate magnetic forces. Oppositely, when magnetic fields are changed …

So in short today we represent the magnetic field by drawing imaginary lines called the magnetic field lines. These field lines tell us in what direction the north pole of the tiny magnet points.

Unit 5: Discoveries and projects Discovery of magnetism Discovery of magnetic fields Measuring magnetic fields Discovery of batteries Discovery of electromagnetism Discovery of resistors …

Shown below is an example of a bar magnet. Which of the following images correctly represents the magnetic field lines inside the magnet?

The magnetic fields of the electrons add together. If you have a situation where you have one electron with spin up and one electron with spin down, the magnetic fields of those electrons …